Agitator



'Jan. 3, 1928. 1,654,815

P. JUIBIEN ET AL I AGITATOR Filed 001'.- s. 1924 s Sheets-Shed 2 cal and fertilizer plants,

Iii

Patented .lani 3, 1928.

v UNITED TATES} PAUL JUBIEN Ann PAUL nannies,

or cnicaeo, 'IL InoIs; SAID Jnnmn ass'reivon r SAID, ,NAEHER.

AGITATOR.

Application filed October 3, 1924. Serial No. 741,388.

Our invention relates to machinery by which various 'materials are agitated and treated by sieves or screens to effect separation, mixing or grading of the constituent elements. The class of operations in question is very diverse in character and applies to the milling of grains and blending of flours, the grinding and mixing of feed stuffs and grading and blending of grain as to size, and the removal of weed seeds, chafi and otherextraneous matters. Chemigrain elevators, cement works and many others offer increasing fields for the use of screens and sieves.

lVith th s increasing use in these many fields has come a demandfor machines of greater size and capable of heavier duty. VJhere reciprocating devices, in which stationary abutmei'its take the power thrusts by which screens are moved, and where the agitation of material and screens is effected as a resultthereof, the operations are'not fully ellicient in effect and are more or less self destruct've to the-mechanism, and this is pan ticularly true when'applicd to the heavy duty and service now demanded. 1

lVehave discovered that screen capacity ordinarily can be greatly increased by amplification of screen movement and that the output and character of'the separationcan be improved thereby, and by relatively smoothscreen action. It is a principal objectof our invention to cause controlled 1 screen mox'ements and to create smoother screen actlon by power applied relatively to movable abutments so as to take advantage of inertia both movmgand stationary in so 1 oomg.

It is a further object thereof to reduce the power required, to ease the shocks of recipe locating machinery, to reduce the noise and d'sagree able features of vibration, to greatly increase the capacity ofthe screens used, and greatly prolong the life of the apparatus.

Further objects are the development of compact and convenient means'for constructing, connecting and assembling mechanical elements to carry out the principles of our invention, and which are shown in the drawings and pointed out in the claims.

The principles of our invention are illustrated in the drawings in which Figs. 1 and 2 represent side and end elevations of our device in which the screening mechanism is adapted to reclprocate on stationary supports or pedestals; Figs. 3- anolel represent similar views as above stated, but in which the apparatus is suspended from a plane above the screening apparatus itself; F ig. shows aside'elevation of the shaking'mech anism;'Fig. 6 is a section on line 66 of Fig. 5; Fig. 7 is a detail taken on dotted line77 of Fig; 6.

Furtherfdescribing our invention with reference to the drawings in which like characters of reference denote like parts throughout: Numeral 1 represents a shaker box in which are mounted a number of screens 2. Numeral 4' designates a number of pedestals adapted to support the shaker boXand provided with heads 5 having longitudinal grooves 6 within'which are received correspondingly formed downwardly projecting members 7 which are formed on brackets 8 and attached to the shaker frame. Substantial timbers 9 are attached to the bottom of the shaker frame between the ends thereof and form a substantial foundation from which depends a casinglO which .carries the crank mechanism 11 by which reciprocating impulses are imparted to the shaker frame. q i

, The shaker frames 1 with screens 2 therein are also shown in Figs. 2 and3 which are supported by wooden'rods '14 or other sub stantially non-'crystallizable,material, and by which thesame is suspended fromith'e ceiling, wall ornpper portion of the machine construction. To the under portion of the asshown in Fig. 1-, is attached.

The details of a preferredform of such apparatus, as in'dicatedm F igs. 1 and 3, is

shown in Fig. 6, in which a box or casing is provided which-may consist of horizontal sections 15 of'metal forming respectlvelythe top and bottom of the'ca'sing, and vertical.

' members 16, forming ends thereof; the same being secured together by tap-bolts'17. The said top and bottom pieces havegroovesor recesses 18 .on their inner faces to slidably receive a rectangular frame-work consisting of the upper-and lower m'embers 2O and the relatively vertical members 21' which are framed together and securedby tap-bolts 22. Said members 21 have projecting strips 23 forming guides which are received within corresponding guide-ways 24 of sliding block 25. A wrist pin passes through the said sliding block 25, and the ends thereof 31 are received in the ends of cranks 32 which, with the shaft sections 33 and 3% form the crank shaft by which the sliding block 25 is moved up and down on the guides 28 while, at the same time, the guides are moved in a relatively horizontal direction. To balance the weight of the wrist pin and the immediately attached portions'of the crank, bolt-s 38 are attached thereto by means of which counter-weights 39 .are secured in place, as shown. On the other hand, for the purpose of increasing the horizontal imulses of the crank shaft and its connections withthe shaker frame, weights 40' are secured to the members2l by means of tap-- bolts 41. And these may be increased or decreased as desired to vary the amplitude and character of the screen movement. On the extended side of the said crank shaft, as shown in Figs. 2 and 4, is a pulley i5 which is driven from pulley 46 on a power or line shaft 47, by means of a belt 48.

The structure shown in Figs. 5, 6 and 7, when attached as shown to the suspended shaker frames, have movement resulting from the reciprocating action of the sliding block and its connections, in the casing, thus forming a reciprocating engine by which backward and forward impulses are given to the shaker frame. The latter is thus caused to move backwardly and forwardly upon the slings or rods, as shown in Figs. 2 and 3 or upon the slides moving on the pedestal heads .5, as shown in Figs. -1 and 2. It will be seen that the reciprocating impulses are directly transferred to theshaker frame without re-aotionary impulses being communicated to the frame-work or support of the sifting machine as a whole or the building in which it is placed.

- We claim: I

'1. In an agitator; a shaker box, adapted to reciprocating movement, means to hold the movement of the shaker box to a pro-determined path a free-movin reci arocatin r 7 t) b weighted head connected with .and adapted to move in a path substantially parallel to the path of movement of the shaker box, a shaft rigidly journaled'to the shaker box for giving reciprocating action to said head, and means independent of the shaker box for rotating said shaft. V

2'. In an agitator; the combination with a shaker 'box adapted freely to reciprocate in established paths of movement and a machine supporting casing rigidly attached thereto and supported thereby, of a free- 4:. In an agitator; the coniibination of shaker box free to reciprocate in an established path of movement, a casing attached to said shaker box, a frame-work horizon-.

tally slidable in said casing, a block vertically slidable in said frame-work, a crank shaft journaled in rigid relation to the easing and having' its wrist pin journaled in said slidable block, and means non-rigidly related to said mechanism for rotating said crank shaft. 7

5. In an agitator; the combination of a shaker box free to reciprocate in an established path of movement, a casing attached to said shaker box, frame-work horizontally slidable in said casing, means for adjustably weighting said frame-work, a block vertically slidable in said frame-work, a crank shaft journale'd in rigid relation to the easing and having its wrist pin journaled in said slidable block, and means non-rigidly related to said mechanism for rotating said crank shaft.

6. In an agitator; guiding and attaching means, a supporting base therefor provided withways to receive said guiding and attaching means, a freemoving reciprocating headmounted on the shaker box, and a crank shaft rigidly journaled to the shaker box to actuate said head. 7. In anagitator; the combination with freely movable shakerbox of guide-ways attached thereto, a head movable. in the guide ways, means rotatable ,relatively to the guide-ways for giving recipiocating movement to said head, andflexible means for communicating power to said head. I

In witness whereof, we have hereunto set our hanc s, at Chicago, Illinois, this Qdtlrday of September, 1924:. I

,rAUnJUBinN'.

PAUL. NAEHER.

a shaker box having 

